diff --git a/Group21_Lab06_Task2/main.c b/Group21_Lab06_Task2/main.c
index 89466ea..4c5374b 100644
--- a/Group21_Lab06_Task2/main.c
+++ b/Group21_Lab06_Task2/main.c
@@ -49,6 +49,7 @@ void delay(int us)                              // DEFINING DELAY FUNCTION
 }
 void SystickHandler(void)
 {                                   // SysTick interrupt handler
+    static int ontime = 0;
     ontime++;
     if (ontime < duty)
     {
@@ -114,5 +115,3 @@ int main(void) {
         // Main loop does nothing; everything is handled in interrupts
     }
 }
-
-